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Create V-IDT.sol

The complete contract as published on the Ethereum network
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Sjazzz committed Aug 22, 2018
1 parent b1ae1c5 commit c3e666878ac55fbad3f138e999f80ad0ab7c0cae
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  1. +333 −0 V-IDT.sol
333 V-IDT.sol
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pragma solidity ^0.4.24;
contract ERC20 {
uint256 public totalSupply;
function balanceOf(address who) public view returns (uint256 balance);
function allowance(address owner, address spender) public view returns (uint256 remaining);
function transfer(address to, uint256 value) public returns (bool success);
function approve(address spender, uint256 value) public returns (bool success);
function transferFrom(address from, address to, uint256 value) public returns (bool success);
event Transfer(address indexed _from, address indexed _to, uint256 _value);
event Approval(address indexed _owner, address indexed _spender, uint256 _value);
}
library SafeMath {
function sub(uint256 a, uint256 b) internal pure returns (uint256 c) {
c = a - b;
assert(b <= a && c <= a);
return c;
}
function add(uint256 a, uint256 b) internal pure returns (uint256 c) {
c = a + b;
assert(c >= a && c>=b);
return c;
}
}
library SafeERC20 {
function safeTransfer(ERC20 _token, address _to, uint256 _value) internal {
require(_token.transfer(_to, _value));
}
}
contract Owned {
address public owner;
constructor() public {
owner = msg.sender;
}
modifier onlyOwner {
require(msg.sender == owner,"O1- Owner only function");
_;
}
function setOwner(address newOwner) onlyOwner public {
owner = newOwner;
}
}
contract Pausable is Owned {
event Pause();
event Unpause();
bool public paused = false;
modifier whenNotPaused() {
require(!paused);
_;
}
modifier whenPaused() {
require(paused);
_;
}
function pause() public onlyOwner whenNotPaused {
paused = true;
emit Pause();
}
function unpause() public onlyOwner whenPaused {
paused = false;
emit Unpause();
}
}
contract VIDToken is Owned, Pausable, ERC20 {
using SafeMath for uint256;
using SafeERC20 for ERC20;
mapping (address => uint256) public balances;
mapping (address => mapping (address => uint256)) public allowed;
mapping (address => bool) public frozenAccount;
mapping (address => bool) public verifyPublisher;
mapping (address => bool) public verifyWallet;
struct fStruct { uint256 index; }
mapping(string => fStruct) private fileHashes;
string[] private fileIndex;
string public constant name = "V-ID Token";
uint8 public constant decimals = 18;
string public constant symbol = "VIDT";
uint256 public constant initialSupply = 100000000;
uint256 public validationPrice = 7 * 10 ** uint(decimals);
address public validationWallet = address(0);
constructor() public {
validationWallet = msg.sender;
verifyWallet[msg.sender] = true;
totalSupply = initialSupply * 10 ** uint(decimals);
balances[msg.sender] = totalSupply;
emit Transfer(address(0),owner,initialSupply);
}
function () public payable {
revert();
}
function transfer(address _to, uint256 _value) public whenNotPaused returns (bool success) {
require(_to != msg.sender,"T1- Recipient can not be the same as sender");
require(_to != address(0),"T2- Please check the recipient address");
require(balances[msg.sender] >= _value,"T3- The balance of sender is too low");
require(!frozenAccount[msg.sender],"T4- The wallet of sender is frozen");
require(!frozenAccount[_to],"T5- The wallet of recipient is frozen");
balances[msg.sender] = balances[msg.sender].sub(_value);
balances[_to] = balances[_to].add(_value);
emit Transfer(msg.sender, _to, _value);
return true;
}
function transferFrom(address _from, address _to, uint256 _value) public whenNotPaused returns (bool success) {
require(_to != address(0),"TF1- Please check the recipient address");
require(balances[_from] >= _value,"TF2- The balance of sender is too low");
require(allowed[_from][msg.sender] >= _value,"TF3- The allowance of sender is too low");
require(!frozenAccount[_from],"TF4- The wallet of sender is frozen");
require(!frozenAccount[_to],"TF5- The wallet of recipient is frozen");
balances[_from] = balances[_from].sub(_value);
balances[_to] = balances[_to].add(_value);
allowed[_from][msg.sender] = allowed[_from][msg.sender].sub(_value);
emit Transfer(_from, _to, _value);
return true;
}
function balanceOf(address _owner) public view returns (uint256 balance) {
return balances[_owner];
}
function approve(address _spender, uint256 _value) public whenNotPaused returns (bool success) {
require((_value == 0) || (allowed[msg.sender][_spender] == 0),"A1- Reset allowance to 0 first");
allowed[msg.sender][_spender] = _value;
emit Approval(msg.sender, _spender, _value);
return true;
}
function increaseApproval(address _spender, uint256 _addedValue) public whenNotPaused returns (bool) {
allowed[msg.sender][_spender] = allowed[msg.sender][_spender].add(_addedValue);
emit Approval(msg.sender, _spender, allowed[msg.sender][_spender]);
return true;
}
function decreaseApproval(address _spender, uint256 _subtractedValue) public whenNotPaused returns (bool) {
allowed[msg.sender][_spender] = allowed[msg.sender][_spender].sub(_subtractedValue);
emit Approval(msg.sender, _spender, allowed[msg.sender][_spender]);
return true;
}
function allowance(address _owner, address _spender) public view returns (uint256 remaining) {
return allowed[_owner][_spender];
}
struct TKN { address sender; uint256 value; bytes data; bytes4 sig; }
function tokenFallback(address _from, uint256 _value, bytes _data) public pure returns (bool) {
TKN memory tkn;
tkn.sender = _from;
tkn.value = _value;
tkn.data = _data;
uint32 u = uint32(_data[3]) + (uint32(_data[2]) << 8) + (uint32(_data[1]) << 16) + (uint32(_data[0]) << 24);
tkn.sig = bytes4(u);
return true;
}
function transferToken(address tokenAddress, uint256 tokens) public onlyOwner {
ERC20(tokenAddress).safeTransfer(owner,tokens);
}
function burn(uint256 _value) public onlyOwner returns (bool) {
require(_value <= balances[msg.sender],"B1- The balance of burner is too low");
balances[msg.sender] = balances[msg.sender].sub(_value);
totalSupply = totalSupply.sub(_value);
emit Burn(msg.sender, _value);
emit Transfer(msg.sender, address(0), _value);
return true;
}
function freeze(address _address, bool _state) public onlyOwner returns (bool) {
frozenAccount[_address] = _state;
emit Freeze(_address, _state);
return true;
}
function validatePublisher(address Address, bool State, string Publisher) public onlyOwner returns (bool) {
verifyPublisher[Address] = State;
emit ValidatePublisher(Address,State,Publisher);
return true;
}
function validateWallet(address Address, bool State, string Wallet) public onlyOwner returns (bool) {
verifyWallet[Address] = State;
emit ValidateWallet(Address,State,Wallet);
return true;
}
function validateFile(address To, uint256 Payment, bytes Data, bool cStore, bool eLog) public whenNotPaused returns (bool) {
require(Payment>=validationPrice,"V1- Insufficient payment provided");
require(verifyPublisher[msg.sender],"V2- Unverified publisher address");
require(!frozenAccount[msg.sender],"V3- The wallet of publisher is frozen");
require(Data.length == 64,"V4- Invalid hash provided");
if (!verifyWallet[To] || frozenAccount[To]) {
To = validationWallet;
}
uint256 index = 0;
string memory fileHash = string(Data);
if (cStore) {
if (fileIndex.length > 0) {
require(fileHashes[fileHash].index == 0,"V5- This hash was previously validated");
}
fileHashes[fileHash].index = fileIndex.push(fileHash)-1;
index = fileHashes[fileHash].index;
}
if (allowed[To][msg.sender] >= Payment) {
allowed[To][msg.sender] = allowed[To][msg.sender].sub(Payment);
} else {
balances[msg.sender] = balances[msg.sender].sub(Payment);
balances[To] = balances[To].add(Payment);
}
emit Transfer(msg.sender, To, Payment);
if (eLog) {
emit ValidateFile(index,fileHash);
}
return true;
}
function verifyFile(string fileHash) public view returns (bool) {
if (fileIndex.length == 0) {
return false;
}
bytes memory a = bytes(fileIndex[fileHashes[fileHash].index]);
bytes memory b = bytes(fileHash);
if (a.length != b.length) {
return false;
}
for (uint256 i = 0; i < a.length; i ++) {
if (a[i] != b[i]) {
return false;
}
}
return true;
}
function setPrice(uint256 newPrice) public onlyOwner {
validationPrice = newPrice;
}
function setWallet(address newWallet) public onlyOwner {
validationWallet = newWallet;
}
function listFiles(uint256 startAt, uint256 stopAt) onlyOwner public returns (bool) {
if (fileIndex.length == 0) {
return false;
}
require(startAt <= fileIndex.length-1,"L1- Please select a valid start");
if (stopAt > 0) {
require(stopAt > startAt && stopAt <= fileIndex.length-1,"L2- Please select a valid stop");
} else {
stopAt = fileIndex.length-1;
}
for (uint256 i = startAt; i <= stopAt; i++) {
emit LogEvent(i,fileIndex[i]);
}
return true;
}
event Burn(address indexed burner, uint256 value);
event Freeze(address target, bool frozen);
event ValidateFile(uint256 index, string data);
event ValidatePublisher(address indexed publisherAddress, bool state, string indexed publisherName);
event ValidateWallet(address indexed walletAddress, bool state, string indexed walletName);
event LogEvent(uint256 index, string data) anonymous;
}

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